The generator matrix

 1  0  0  0  1  1  1  2  1  6  1  1  6  1  0  0  1  1  1  4  1  4  1  1  1  0  2  2  4  1  2  1  1  4  1  1  2  1  0  2  0  1  2  1  4  2  2  1  1  1  6  0  1  1  1  1  1  6  1  6  1  4  1  1  1  0  1  1  1  4  2  6  6  1
 0  1  0  0  1  4  1  1  5  1  0  3  1  0  2  1  0  2  6  1  4  4  5  5  7  2  1  0  1  5  6  4  7  0  7  2  1  1  1  1  0  4  1  6  1  2  1  4  7  3  6  1  0  6  2  2  7  1  5  0  7  1  3  6  6  4  7  5  0  2  6  1  6  2
 0  0  1  0  2  0  6  2  1  1  3  5  3  5  1  2  6  1  0  1  7  6  5  4  6  1  1  1  2  7  2  5  2  1  3  5  3  1  6  5  1  0  7  1  5  1  4  6  1  4  1  2  4  2  6  6  2  5  3  1  6  0  4  4  2  1  1  3  7  1  6  2  1  3
 0  0  0  1  2  1  3  3  3  6  2  4  7  5  1  6  7  5  0  2  0  1  4  2  1  3  3  2  3  1  1  6  0  3  2  6  1  7  0  0  6  6  4  5  1  7  5  0  2  7  5  6  3  7  7  6  6  5  3  7  1  4  0  2  6  5  7  6  6  3  1  2  5  6
 0  0  0  0  4  0  4  4  4  4  0  4  4  0  0  4  4  4  4  0  4  4  0  0  0  4  0  4  0  0  0  0  0  0  4  4  4  0  4  4  4  4  0  0  0  0  0  0  0  4  4  0  4  0  4  0  4  0  4  0  4  4  0  4  4  4  4  0  0  0  4  4  0  4

generates a code of length 74 over Z8 who´s minimum homogenous weight is 67.

Homogenous weight enumerator: w(x)=1x^0+264x^67+461x^68+498x^69+698x^70+756x^71+661x^72+638x^73+703x^74+644x^75+608x^76+536x^77+420x^78+400x^79+275x^80+224x^81+172x^82+60x^83+71x^84+54x^85+22x^86+20x^87+3x^88+2x^89+1x^90

The gray image is a code over GF(2) with n=296, k=13 and d=134.
This code was found by Heurico 1.11 in 18.4 seconds.